Syndactyly type 8 is a rare form of syndactyly, a congenital condition in which two or more digits are fused together. It is characterized by fusion of the fourth and fifth digits of the hand or foot, with the fourth digit being the most commonly affected. The fusion may involve the entire length of the digits or just the distal phalanges.

The symptoms of Syndactyly type 8 include webbing of the fingers and toes, fusion of the fingers and toes, and the presence of extra digits. Other symptoms may include abnormal nail formation, abnormal skin creases, and abnormal joint movement.

Syndactyly type 8 is a rare congenital condition caused by a genetic mutation. It is caused by a mutation in the HOXD13 gene, which is responsible for the development of the hands and feet. The mutation can be inherited from a parent or can occur spontaneously.

1. Surgery: Surgery is the most common treatment for syndactyly type 8. The goal of surgery is to separate the fused digits and create a more normal appearance. The surgery is usually done under general anesthesia and can involve skin grafts, tissue expansion, and tendon transfers.

2. Splinting: Splinting is another treatment option for syndactyly type 8. Splints can be used to help separate the fused digits and improve the range of motion.

3. Physical Therapy: Physical therapy can help improve range of motion and strength in the affected digits.

4. Occupational Therapy: Occupational therapy can help improve the function of the affected digits and help the patient adapt to their new range of motion.

1. Genetic mutations: Syndactyly type 8 is caused by genetic mutations in the HOXD13 gene.

2. Family history: Syndactyly type 8 is more likely to occur in families with a history of the condition.

3. Environmental factors: Exposure to certain environmental factors, such as radiation or certain medications, may increase the risk of developing Syndactyly type 8.

4. Other genetic conditions: Syndactyly type 8 may be associated with other genetic conditions, such as Apert syndrome or Crouzon syndrome.

At this time, there is no known cure for Syndactyly type 8. However, there are surgical options available to separate the fused digits. Medications are not typically used to treat Syndactyly type 8.